Connectors – Mouser Singapore

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Power Triple Lock Connector System

TE Connectivity's (TE) Power Triple Lock (PTL) Connector System offers three locking methods and an enhanced design to meet the market demand for improved connector stability and reliability in power and signal applications. An audible 'lock' latch provides confirmation when the cap and plug are mated while the ribs surrounding the latch prevent wires from becoming snagged underneath the latch. Optional Connector Position Assurance (CPA) ensures the PTL Connector System is not accidentally disengaged. The optional Terminal Position Assurance (TPA) feature ensures contacts are fully seated in the housing and provides an added measure against contact backout. Additional features include high temperature housings up to 150°C (302°F) and an upgraded lanceless contact design.

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Part #

Headers & Wire Housings 22 AWG PhosBr Rcpt Contact Terminal

1971785-1
TE Connectivity / AMP
4,400: $0.084
66,000In Stock

Mfr. Part No.
1971785-1

Mouser Part No
571-1971785-1

TE Connectivity / AMP

Headers & Wire Housings 22 AWG PhosBr Rcpt Contact Terminal

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Datasheet

Product Comments

66,000In Stock

Reel

$0.084

$0.078

$0.072

Min.: 4,400
Mult.: 4,400

: 4,400

Headers & Wire Housings CPA

1971789-1
TE Connectivity
1: $0.435
48,301In Stock

Mfr. Part No.
1971789-1

Mouser Part No
571-1971789-1

TE Connectivity

Headers & Wire Housings CPA

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Datasheet

48,301In Stock

$0.435

$0.366

$0.326

$0.291

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Min.: 1
Mult.: 1

Power to the Board 2x4 plug housing lgr Key A

5-1971776-4
TE Connectivity
1: $1.58
4,000In Stock

Mfr. Part No.
5-1971776-4

Mouser Part No
571-5-1971776-4

TE Connectivity

Power to the Board 2x4 plug housing lgr Key A

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Datasheet

4,000In Stock

$1.58

$1.34

$1.19

$1.14

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Min.: 1
Mult.: 1

Headers & Wire Housings 1 X 2 PCB Header PC Board Mount

1-1969688-2
TE Connectivity / AMP
1: $2.88
4,748In Stock

Mfr. Part No.
1-1969688-2

Mouser Part No
571-1-1969688-2

TE Connectivity / AMP

Headers & Wire Housings 1 X 2 PCB Header PC Board Mount

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Datasheet

4,748In Stock

$2.88

$2.82

$2.73

$1.74

Min.: 1
Mult.: 1

Headers & Wire Housings 1 X 4 PCB Header PC Board Mount

1-1969688-4
TE Connectivity / AMP
1: $3.67
3,009In Stock

Mfr. Part No.
1-1969688-4

Mouser Part No
571-1-1969688-4

TE Connectivity / AMP

Headers & Wire Housings 1 X 4 PCB Header PC Board Mount

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Datasheet

3,009In Stock

$3.67

$3.20

$3.06

$2.86

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Min.: 1
Mult.: 1

Power to the Board 1 x 2 PBT-A Cap Hsg Panel Mount

1-1971772-2
TE Connectivity / AMP
1: $0.925
5,638In Stock

Mfr. Part No.
1-1971772-2

Mouser Part No
571-1-1971772-2

TE Connectivity / AMP

Power to the Board 1 x 2 PBT-A Cap Hsg Panel Mount

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Datasheet

5,638In Stock

$0.925

$0.802

$0.611

$0.589

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Min.: 1
Mult.: 1

Power to the Board 1 x 4 PBT-A Cap Hsg Panel Mount

1-1971772-4
TE Connectivity / AMP
1: $0.993
7,945In Stock

Mfr. Part No.
1-1971772-4

Mouser Part No
571-1-1971772-4

TE Connectivity / AMP

Power to the Board 1 x 4 PBT-A Cap Hsg Panel Mount

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Datasheet

7,945In Stock

$0.993

$0.84

$0.751

$0.687

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Min.: 1
Mult.: 1

Power to the Board 1 x 3 PBT-A Plug Hsg

1-1971773-3
TE Connectivity / AMP
1: $1.02
14,186In Stock

Mfr. Part No.
1-1971773-3

Mouser Part No
571-1-1971773-3

TE Connectivity / AMP

Power to the Board 1 x 3 PBT-A Plug Hsg

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Datasheet

14,186In Stock

$1.02

$0.892

$0.816

$0.736

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Min.: 1
Mult.: 1

Power to the Board 1 x 4 PBT-A Plug Hsg

1-1971773-4
TE Connectivity / AMP
1: $1.03
16,165In Stock

Mfr. Part No.
1-1971773-4

Mouser Part No
571-1-1971773-4

TE Connectivity / AMP

Power to the Board 1 x 4 PBT-A Plug Hsg

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Datasheet

16,165In Stock

$1.03

$0.903

$0.826

$0.745

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Min.: 1
Mult.: 1

Power to the Board 2 x 3 PBT-A Plug Hsg

1-1971776-3
TE Connectivity / AMP
1: $1.31
3,367In Stock

Mfr. Part No.
1-1971776-3

Mouser Part No
571-1-1971776-3

TE Connectivity / AMP

Power to the Board 2 x 3 PBT-A Plug Hsg

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Datasheet

3,367In Stock

$1.31

$1.11

$1.03

$0.963

View

Min.: 1
Mult.: 1

Headers & Wire Housings 3 x 4 PBT-A Plug Hsg

1-1971876-4
TE Connectivity / AMP
1: $1.52
5,415In Stock

Mfr. Part No.
1-1971876-4

Mouser Part No
571-1-1971876-4

TE Connectivity / AMP

Headers & Wire Housings 3 x 4 PBT-A Plug Hsg

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Datasheet

5,415In Stock

$1.52

$1.29

$1.24

$1.16

View

Min.: 1
Mult.: 1

Automotive Connectors 2 X 4 150C BLK TPA-Locking Plate

1971778-4
TE Connectivity / AMP
1: $0.422
19,750In Stock

Mfr. Part No.
1971778-4

Mouser Part No
571-1971778-4

TE Connectivity / AMP

Automotive Connectors 2 X 4 150C BLK TPA-Locking Plate

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Datasheet

19,750In Stock

$0.422

$0.36

$0.326

$0.316

View

Min.: 1
Mult.: 1

Headers & Wire Housings 14 AWG Brass Pin Con Term Reel/4000

1971782-1
TE Connectivity / AMP
4,000: $0.072
44,000In Stock

Mfr. Part No.
1971782-1

Mouser Part No
571-1971782-1

TE Connectivity / AMP

Headers & Wire Housings 14 AWG Brass Pin Con Term Reel/4000

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Datasheet

Product Comments

44,000In Stock

Reel

$0.072

$0.069

$0.067

$0.063

$0.056

Min.: 4,000
Mult.: 4,000

: 4,000

Power to the Board 1x2 cap housing lgr free hanging Key A

5-1971772-2
TE Connectivity
1: $1.09
13,293In Stock

Mfr. Part No.
5-1971772-2

Mouser Part No
571-5-1971772-2

TE Connectivity

Power to the Board 1x2 cap housing lgr free hanging Key A

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Datasheet

13,293In Stock

$1.09

$0.929

$0.83

$0.752

View

Min.: 1
Mult.: 1

Power to the Board 1x4 cap housing lgr panel mount Key A

5-1971772-4
TE Connectivity
1: $1.20
10,009In Stock

Mfr. Part No.
5-1971772-4

Mouser Part No
571-5-1971772-4

TE Connectivity

Power to the Board 1x4 cap housing lgr panel mount Key A

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Datasheet

10,009In Stock

$1.20

$1.01

$0.906

$0.885

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Min.: 1
Mult.: 1

Headers & Wire Housings 1x3 plug housing lgr Key A

5-1971773-3
TE Connectivity
1: $1.05
9,739In Stock

Mfr. Part No.
5-1971773-3

Mouser Part No
571-5-1971773-3

TE Connectivity

Headers & Wire Housings 1x3 plug housing lgr Key A

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Datasheet

9,739In Stock

$1.05

$0.895

$0.798

$0.76

View

Min.: 1
Mult.: 1

Headers & Wire Housings 1 X 3 150C BLK TPA-Locking Plate

1971777-3
TE Connectivity / AMP
1: $0.585
5,637In Stock
10,000Expected 7/9/2026

Mfr. Part No.
1971777-3

Mouser Part No
571-1971777-3

TE Connectivity / AMP

Headers & Wire Housings 1 X 3 150C BLK TPA-Locking Plate

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Datasheet

5,637In Stock

10,000Expected 7/9/2026

$0.585

$0.437

$0.401

$0.34

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Min.: 1
Mult.: 1

Headers & Wire Housings 1 X 4 150C BLK TPA-Locking Plate

1971777-4
TE Connectivity / AMP
1: $0.53
9,589In Stock

Mfr. Part No.
1971777-4

Mouser Part No
571-1971777-4

TE Connectivity / AMP

Headers & Wire Housings 1 X 4 150C BLK TPA-Locking Plate

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Datasheet

9,589In Stock

$0.53

$0.454

$0.40

$0.354

View

Min.: 1
Mult.: 1

Headers & Wire Housings 1 X 5 150C BLK TPA-Locking Plate

1971777-5
TE Connectivity / AMP
1: $0.449
2,954In Stock

Mfr. Part No.
1971777-5

Mouser Part No
571-1971777-5

TE Connectivity / AMP

Headers & Wire Housings 1 X 5 150C BLK TPA-Locking Plate

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Datasheet

2,954In Stock

$0.449

$0.377

$0.337

$0.321

View

Min.: 1
Mult.: 1

Headers & Wire Housings 12 Awg Receptacle contact

1971779-2
TE Connectivity / AMP
1: $0.286
2,415In Stock
80,000Expected 17/8/2026

Mfr. Part No.
1971779-2

Mouser Part No
571-1971779-2

TE Connectivity / AMP

Headers & Wire Housings 12 Awg Receptacle contact

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Datasheet

2,415In Stock

80,000Expected 17/8/2026

$0.286

$0.249

$0.22

$0.19

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Min.: 1
Mult.: 1

Headers & Wire Housings 14 Awg Tab contact

1971782-2
TE Connectivity / AMP
4,000: $0.105
20,000In Stock

Mfr. Part No.
1971782-2

Mouser Part No
571-1971782-2

TE Connectivity / AMP

Headers & Wire Housings 14 Awg Tab contact

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Datasheet

20,000In Stock

Reel

$0.105

$0.099

Min.: 4,000
Mult.: 4,000

: 4,000

Headers & Wire Housings 16-20 AWG PhsBr Rcpt Con Term Reel/3700

1971783-1
TE Connectivity
3,700: $0.076
37,000In Stock

Mfr. Part No.
1971783-1

Mouser Part No
571-1971783-1

TE Connectivity

Headers & Wire Housings 16-20 AWG PhsBr Rcpt Con Term Reel/3700

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Datasheet

Product Comments

37,000In Stock

Reel

$0.076

$0.075

$0.071

$0.067

$0.063

$0.06

Min.: 3,700
Mult.: 3,700

: 3,700

Headers & Wire Housings 16-20 AWG Brass Pin Con Term Reel/3700

1971784-1
TE Connectivity / AMP
3,700: $0.06
33,300In Stock

Mfr. Part No.
1971784-1

Mouser Part No
571-1971784-1

TE Connectivity / AMP

Headers & Wire Housings 16-20 AWG Brass Pin Con Term Reel/3700

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Datasheet

Product Comments

33,300In Stock

Reel

$0.06

$0.057

$0.054

$0.046

$0.042

Min.: 3,700
Mult.: 3,700

: 3,700

Headers & Wire Housings 16 20 Awg Tab contact

1971784-2
TE Connectivity / AMP
3,700: $0.079
7,400In Stock
14,800Expected 31/8/2026

Mfr. Part No.
1971784-2

Mouser Part No
571-1971784-2

TE Connectivity / AMP

Headers & Wire Housings 16 20 Awg Tab contact

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Datasheet

Product Comments

7,400In Stock

14,800Expected 31/8/2026

Reel

$0.079

$0.075

$0.072

$0.06

$0.056

Min.: 3,700
Mult.: 3,700

: 3,700

Headers & Wire Housings 2X18 Awg Tab contact

1971788-2
TE Connectivity / AMP
1: $0.326
833In Stock

Mfr. Part No.
1971788-2

Mouser Part No
571-1971788-2

TE Connectivity / AMP

Headers & Wire Housings 2X18 Awg Tab contact

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Datasheet

833In Stock

Cut Tape

$0.326

$0.268

$0.222

$0.197

Reel

$0.129

View

Min.: 1
Mult.: 1

: 2,200

Power Triple Lock Connector System

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